On the one hand, I'm sympathetic that not everyone has a place to create a TV studio at home. On the other hand, there are easy ways to block out the light from a backlighting window and to add a key light.
It's a case of empathy. Do you have enough empathy to check how your video looks and do simple changes?
I agree with the basic point that there is low-hanging fruit that many people can address for not much time and money.